Malicious PDF — malware analysis report

Static analysis result for SHA-256 6a26ddddbf248110…

MALICIOUS

PDF

47.8 KB Created: 2021-05-12 04:38:14 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 39e3f6ac4364a74eb7e97386cf1693a5 SHA-1: 64b2af43598b699989963e67d96318dbd04eecef SHA-256: 6a26ddddbf248110ebe89f1a2038080f45032a055d92c88f75bc5be1a2dd3d32
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document employs a lure related to free game items, specifically referencing Roblox and Coin Master, to entice users to click on embedded links. The primary link directs to a known malicious redirector infrastructure, which likely serves as a gateway to further malicious content or exploits. The ML classifier also flagged this PDF as malicious, supporting the observed malicious link behavior.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9013

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://netcdn.xyz/app/431946152/free-roblox-com-game-hack In PDF document text
    • http://bijbelreizenisrael.nl/images/roblox-free-robux-codes_GM431946152.pdfIn PDF document text
    • http://bijbelreizenisrael.nl/images/hacks-para-roblox_GM431946152.pdfIn PDF document text
    • http://bijbelreizenisrael.nl/images/2021-roblox_GM431946152.pdfIn PDF document text
    • http://bijbelreizenisrael.nl/images/free-robux-without-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://bijbelreizenisrael.nl/images/can-you-actually-get-free-robux_GM431946152.pdfIn PDF document text
    • http://bijbelreizenisrael.nl/images/coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://bijbelreizenisrael.nl/images/coin-master-daily-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • http://bijbelreizenisrael.nl/images/websites-that-give-free-robux_GM431946152.pdfIn PDF document text
    • http://bijbelreizenisrael.nl/images/coinmaster-spin-ml-link_GM406889139.pdfIn PDF document text
    • http://bijbelreizenisrael.nl/images/free-robux-com-2021_GM431946152.pdfIn PDF document text
    • http://bijbelreizenisrael.nl/images/free-roblox-hack-us_GM431946152.pdfIn PDF document text
    • http://bijbelreizenisrael.nl/images/how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://bijbelreizenisrael.nl/images/free-robux-no-verification-needed_GM431946152.pdfIn PDF document text
    • http://bijbelreizenisrael.nl/images/free-robux-real-2021_GM431946152.pdfIn PDF document text
    • http://bijbelreizenisrael.nl/images/free-coin-master-spin-generator_GM406889139.pdfIn PDF document text
    • http://bijbelreizenisrael.nl/images/www-free-robux-com_GM431946152.pdfIn PDF document text
    • http://bijbelreizenisrael.nl/images/free-minecraft-printables-food-labels_GM479516143.pdfIn PDF document text
    • http://bijbelreizenisrael.nl/images/how-to-get-free-robux-app_GM431946152.pdfIn PDF document text
    • http://bijbelreizenisrael.nl/images/coin-master-mod-apk-2021_GM406889139.pdfIn PDF document text
    • http://bijbelreizenisrael.nl/images/generator-robux_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000048cb.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x48CB 30436 bytes
SHA-256: 514030ae06b7258b225a18ae2bf898f5463120e4b0452bb3463e5cad9020602a
font_01_sfnt_off00008e0d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E0D 3152 bytes
SHA-256: c4fb84214e0d056ad7a017a7a61aa7b7d46c7a8540aece68fde9471343dbbd20
font_02_sfnt_off000098f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x98F9 18208 bytes
SHA-256: a8b78c346849e492d79c6e108c6b39d90d98748c1a8fa70f2ffbc01f5a97eafd

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